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abstract public MakeReader ( ) : |
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| Результат | ||
public PackagedFileInfo WriteFile(FileInfo info)
{
// Assume that all files are written uncompressed (worst-case) when calculating package sizes
var size = info.Size();
if (streams.Last().Position + size > MaxPackageSize)
{
// Start a new package file if the current one is full.
var partPath = Package.MakePartFilename(path, streams.Count);
var nextPart = new FileStream(partPath, FileMode.Create, FileAccess.Write);
streams.Add(nextPart);
}
var stream = streams.Last();
var packaged = new PackagedFileInfo();
packaged.PackageStream = stream;
packaged.Name = info.Name;
packaged.UncompressedSize = size;
packaged.ArchivePart = (UInt32)(streams.Count - 1);
packaged.OffsetInFile = (UInt32)stream.Position;
packaged.Flags = BinUtils.MakeCompressionFlags(Compression, CompressionLevel);
var reader = info.MakeReader();
var uncompressed = reader.ReadBytes((int)reader.BaseStream.Length);
var compressed = BinUtils.Compress(uncompressed, Compression, CompressionLevel);
stream.Write(compressed, 0, compressed.Length);
reader.Dispose();
packaged.SizeOnDisk = (UInt32)(stream.Position - packaged.OffsetInFile);
packaged.Crc = Crc32.Compute(compressed);
var padLength = PaddingLength();
if (stream.Position % padLength > 0)
{
// Pad the file to a multiple of 64 bytes
byte[] pad = new byte[padLength - (stream.Position % padLength)];
for (int i = 0; i < pad.Length; i++)
{
pad[i] = 0xAD;
}
stream.Write(pad, 0, pad.Length);
}
return(packaged);
}
public PackagedFileInfo WriteFile(FileInfo info)
{
// Assume that all files are written uncompressed (worst-case) when calculating package sizes
var size = info.Size();
if (streams.Last().Position + size > MaxPackageSize)
{
// Start a new package file if the current one is full.
var partPath = Package.MakePartFilename(path, streams.Count);
var nextPart = new FileStream(partPath, FileMode.Create, FileAccess.Write);
streams.Add(nextPart);
}
var stream = streams.Last();
var packaged = new PackagedFileInfo();
packaged.PackageStream = stream;
packaged.Name = info.Name;
packaged.UncompressedSize = size;
packaged.ArchivePart = (UInt32)(streams.Count - 1);
packaged.OffsetInFile = (UInt32)stream.Position;
packaged.Flags = BinUtils.MakeCompressionFlags(Compression, CompressionLevel);
var reader = info.MakeReader();
var uncompressed = reader.ReadBytes((int)reader.BaseStream.Length);
var compressed = BinUtils.Compress(uncompressed, Compression, CompressionLevel);
stream.Write(compressed, 0, compressed.Length);
reader.Dispose();
packaged.SizeOnDisk = (UInt32)(stream.Position - packaged.OffsetInFile);
packaged.Crc = Crc32.Compute(compressed);
var padLength = PaddingLength();
if (stream.Position % padLength > 0)
{
// Pad the file to a multiple of 64 bytes
byte[] pad = new byte[padLength - (stream.Position % padLength)];
for (int i = 0; i < pad.Length; i++)
{
pad[i] = 0xAD;
}
stream.Write(pad, 0, pad.Length);
}
return packaged;
}